Fuel-economizer.



No. 729,273. PATENTED MAY 26, 190s. Y f G. H. BURPEE.

FUEL EGONOJSIIZER.v

APPLICATION FILED MAY 23. 1902. g N0 MODEL. 3 SHEETS-SHEET l.

f lumai No.. wmf/'3., l 'PATENTED MAY 26, 190s., G. H. BURPEE.

FUEL BGONOMIZBR.

APPLIOATION FILED MAY 23| 1902.

N'O MODEL 110.729,273. lPATENTLBD MAY 26,1903.

'- ,'G'. H. BURPBB.

FUEL EGONOMIZER. APPLIOATIUN FILED MAY 23, 1902.

No MODEL. a SHEETS-snm s.

'me wams PETERS cu. Pnorn mmc., M smNaToN, n d:

UNITED STATES Patented May 26, 1903i PATENT OFFICE.

GEORGE H. BURPEE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO FUEL ECONOMIZER COMPANY OF AMERICA, OFCAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY. l

FUEL-ECONOMIZER.'

SPECIFICATION forming part of Letters Patent N o. 7 29,273,6.ated May 26, 1903. Application filed May 23, 1902., Serial No. 108,717. (No model.)

To all whom it may concern:

citizen ofthe United States, residingin Philadelphia, Pennsylvania, have invented certainV Improvements in Fuel-Economizers, of which the following is a specification.

ments in the construction of fuel-economizers or feed-water heaters for boilers, which are ro usually placed directly back of the boiler within the Hue, so that the waste products of combustion will be utilized in heating the feed-water supplied to the boiler. These fueleconomizers or feed-water heaters are usuallyv constructed with upper and lower header-sections coupled together by vertical tubes, the upper header-sections being connected to the boiler and the lower sections being connected to the supply-pipe.

zo The main object of my invention is te so;

construct a fuel-economizer of this type that the products of combustion will be utilized to the best advantage.

A further object of my invention is to allowr for the proper circulation of the water through the economize'r.

provements in details of construction'V described hereinafter. 3o In the accompanyingdrawings, Figure lis an end view of a fuel-economizer,A partlyin section,illustrating my invention. Fig. 2-isv a side View, partly in section. Fig. 3 is a plan view. Fig. 4: is a sectional plan view on the- Fig. 5 is a sectional plan line 4 4, Fig. l. x

view on the line 5 5, Fig. 1.

A A are the lower headers of the fuel-economizer. These headers are made in sections, the number of sections depending upon the 4o size of the i'lue and the capacity of the boiler.

B B are the upper headers, arranged parallel with the lower headers.

Coupled to the upper and lower headers in any suitable manner are the Vertical circu- 4 5 lating-tubes C. In the present instance there is a single row of circulating-tubes coupled to each upper and lower header-section, as indicated in the drawings. Secured to the ends of the lower header-sections and com- 5o mon to all of these sections is a manifold D,

communicating with the supply-pipe forwater to be heated. y K

The upper headers B are enlarged at b at one end, and in these enlargements are openings b', which form a common passage for all 55 the header-sections, and this passage com- My invention relates to certain improve-- municates with the tubeleadin g to the boiler.

In this type of fuel-economizer or feed-Water heater the tubes are usually arranged in straight lines, so that the products of com- 6o `bustion will pass through the economizer between the tubes. By my improved economizer I arrange the alternate series of tubes so that they will be opposite the space between the other tubes, thus staggering the tubes, so as to interrupt the passage of the products of combustion through the economizer, and thus utilize to a greater extent the heat from the products of combustion.

In order to economically produce a feed- 7o water .heater or economizer of this type, I so arrange the sections of the upper, and lower headers that the series of upper headers will be identical in form, with the exception that the ange b2 of one header will be shorter 75 than the Harige-b3 ofthe other header and The invention alsotrelates to certain im-` the iange b4 at the opposite end of the header will be longer than lthe lange b5 ofthe adjoining header. This construction simpliiies the manufacture of a fuel-economizer of this 8o type. -The several sections are secured together by bolts or other suitable fastenings, and I preferably so shape each header that whenfthe several headers are assembled, as

vin Fig. 3, the passage b', which forms a com- 85 munication `for-the several .upper headers, is in a straight line, as shown in Fig. 5, so as to insure the propercirculation of the Water within the tubes and headers. Each-upper header has side iianges b, which when they 9o are assembled close the openingbetween the headers, as it will be seen that each of the headers is cylindrical except Where they are coupled to the tubes.

Y Directly above each tube-opening of the upper headers are openings e,slightly tapered, and inserted within the headers are caps E, which are held in place by bolts e', passing through cover-plates E', mounted on the outside of the header, so that on turning the bolt I'oo the tapered caps E will be drawn tightly into the openings e, and thus make a tight joint.

In the extended portion b is an opening c2 larger than the opening e. The object in making this opening larger is toallow for the introduction of the caps E within the header. This opening is covered by a cap E2, having a tapered flange and held in place by bolts e3.

Each upper header-section has a flange c on each side, to which the plates F F forming the casing of the economizer are secured, as shown in Figs. l and 3. l

Thelower series of headers A are supported in the present instance on I-beams F', forming the base of the economizer, and the space W between these beams is utilized for the accumulation of soot, which is scraped from the tubes.

The lower header-sections A are so spaced apart as to allow a. passage w between each section for the soot, so that as the soot is removed from the surface of the tubes C it passes down between the headers into the chamber W.

Each header-section A has an opening a, at one end, which communicates with the manifold D, so that each lower header is supplied directly with water from the manifold. Surrounding this opening a is a tapered flange a', fitting tapered openings in the manifold D, as shown clearly in Fig. 1. This manifold D is supported on brackets F 2, attached to one ot` the I-beams F', and the casings F F extend from the upper surface of each I-beam to the upper headers B, as described above, the casings being cut away for the manifold D. Thus the lower headers and one end of the upper headers, as well as the circulatingtubes, are inclosed within the casing, while the manifold D is mounted outside the casing, and the upper portions of the upper headers are also on the outside of the casing, so that in the event of any leak or in the case of repairs to these parts it is not necessary toenter the chamber, but access may be had to these parts from the exterior.

In the manifold D, directly opposite each opening a, is an opening d, having tapered walls, and these openings are covered by caps d', having tapered flanges d2, which lit the tapered walls of the openings. It will be noticed that these caps are made in the peculiarform shown in Fig. 2, having extensions d3 at each end through which the securing-bolts pass. These securingbolts g pass through extensions d3 of the cap, through the flanges dlon the manifold, and their heads rest in pockets a3 on the header-sections A. The upper pockets are arranged on one side of a vertical centerline, and thelower pockets are arranged on the opposite side of the vertical centerline, so that the caps are arranged at an angle, as shown in Fig. 2. This construction reduces the height of the manifold and the lower headers, as well as allowsmore rooln for the reception of the bolt in the sockets a3.

The lower headers A are similar in form, with the exception that the body is extended at one end of the alternate extensions and extended on the opposite end of the other section, as clearly shown in Fig. 4.

The fuel-economizer is placed in lthe flue leading from a boiler or other furnace in the present instance, so that the upper and lower headers are arranged transversely to the drection of the products of combustion. The manifold D is coupled to the water-supply pipe, and the opening b in one end of the apper headers is coupled to the tube leadingr to the boiler. The casing incloses the tubes and a portion of the upper andlower headers, and as the products of combustion pass through the`economizer their free passage is interrupted by the staggering of the tubes. Thus while the products of combustion pass through the economizer the heat from the products of combustion is utilized to effect the .best results.

I claim as my inventionl. The combination in a fuel-economizer, of a series of upper and lower headers placed side by side, each of said headers having a series of openings, vertical tubes entering the openings and connecting the upper and lower headers, the lines of the openings in the alternate headers being in series of planes parallel to the lines of the openings in the remaining headers whereby the tubes of one series are staggered in respect to those of the other series so that the passage of the products of combustion through the economzer will be interrupted, substantially as described.

2. The combination in a fuel-economizer, of a series of upper header-sections, a series of lower header-sections, and a series of cir- 'culating-tubes coupled to the upper and lower header-sections, the tubes of one section being staggered in respect to the tubes of an adjoining section, the alternate upper header-sections having extended flanges at one end, and the other sections having eX- tended flanges at the opposite end, so that when the several upper sections are assembled the tubes of one section will be opposite the spaces between the tubes of an adjoining section, substantially as described.

3. The combination in a series of upper header-sections, of a fuel-economizer, each section having a series of openings to which the tubes are attached, a series of openings in the upper portion of the header in line with the tube-openings, caps for said openings, eaeh header-section being enlarged at one end and having an enlarged opening therein, a cap therefor, and openings in the sides of the enlarged portion of each headersection arranged off center so that when the said header-sections are coupled together the tubes will be staggered and the openings forming communication between one section and the other will be in a straight line, substantially as described.

IOO

IIO

fl. The combination in a fuel-economizer, of the upper headers, circulating-tubes coupled to the said headers, a series of lower opening in each header-section, cap-plates for said openings, with means for securing the cap-plates to the longitudinal manifold, said fastenings being arranged o .the vertical center line, substantially as described.

5. The combination in a fuel-economizer, of upper header-sections, lower header-seetions, a series of vertical circulating-tubes coupled to the upper and lower header-sections, the tubes being staggered so as to interrupt the passage of the products of combustion through the economizer, a longitudinally-arranged manifold coupled to the lower header-sections, each upper header-section having side openings so arranged that when the several sections arel coupled together there will be a straight passage forminga communication between the several upper sections, and a straight passage forming com munication between the several lower sections, substantially as described.

6. The combination in a fuel-economizer, of a series of upper header-sections, a series of lower header-sections, vertical circulatingtubes connecting the upper header-sections withthe lower header-sections, a longitudinal manifold coupled to the ends of the lower header-sections, openin gs in the longitudinal manifold-section opposite the end of each lower header-section, caps for said tubes, bolts passing through the caps of the longitudinal manifold-section and secured to projections on each lower header-section, the said bolts and projections being arranged at one side of a vertical line drawn through the lower header-sections, substantially as de scribed.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE H. BURPEEb Witnesses:

WILL. A. BARR, Jos. H. KLEIN. 

